Crystal growth and spectroscopic properties of Nd 3+ :(Ba 0.32 Sr 0.68 ) 5 Nb 4 O 15 crystal

Preparation and Optical Properties of Nd:Bi2Ti2O7 Laser Crystal with Disordered Structure and Attractive Multiwavelength Emission Characteristics

“…Besides, the root-mean-square (RMS) deviation and relative error of experimental and theoretical absorption line strengths were calculated using eqs and RMS Δ S = ∑ J ′ ( S exp − S cal ) 2 N − 3 RMS false( error false) = ∑ J ′ false( S exp − S cal false) 2 N − 3 ∑ J ′ S exp 2 N where N is the transition number. Moreover, the radiative transition rates A r , radiative lifetime τ r , and fluorescence branching ratio β can be derived using eqs S1–S3 (SI). ,, …”

“…Moreover, the radiative transition rates A r , radiative lifetime τ r , and fluorescence branching ratio β can be derived using eqs S1−S3 (SI). 49,52,53 Based on the above equations, the spectral parameters of the Nd:BTO crystal were calculated and are shown in Tables 3 and 4. In addition, the J−O intensity parameters Ω 2 , Ω 4 , and Ω 6 were determined to be 4.70, 0.71, and 1.21, respectively.…”